Adjustable attaching device



' ADJUSTABLE ATTACHING DEVICE Filed Sept. 11, 1950 FIG.4

FIGS

INVENTOR R E N R V N A M R E H FIGJ ATTORNEY Patented Apr. 28, 1953UNITED STATES PATENT OFFICE ADJUSTABLE ATTACHING DEVICE Herman Vizner,Brooklyn, N. Y. Application September 11, 1950, Serial No. 184,310

' (Cl. 24-20s) 3 Claims. 1

i This invention relates to improvements in adjustable fasteningdevices, including a trackcomprising a-plurality of spaced stops, or thelike, supported in a flexible manner, and a cooperating member slidableover the track and adapted to be selectively locked to the track invarious lengthwise positions against movement on the track.

An object of this invention is to secure a row of hexagonallly shapedfastener elements in a linear row to a flexible fabric strip, and tomount a clasp in slidable relation on the strip, and the clasp havingresiliently mounted rotatable detents for selectively interlocking withthe sides of the hexagonal fastener elements.

. Another object of this invention is to form parallel lateral wallsinside the clasp for guiding the clasp in alinement with the row offastener elements.

Another object of this invention is to provide a cover having aninverted U-shaped body portion co-extensive internally with the Width ofthe clasp when in closed position, and being pivotally mounted on theclasp body to retain the resilient side walls of the clasp body inclosed position and the detents in interlocking relation with the trackand with the clasp.

With the above and other objects in view, the invention will behereinafter more particularly described, and the combination andarrangement of parts will be shown in the accompanying drawings andpointed out in the claims which form part of this specification;

Reference will now be had to the drawings, wherein like numerals ofreference designate corresponding parts throughout the several views, inwhich: 1

Figure lvisa side elevation of a fragmentary portion of an adjustablefastener embodying one form of the invention.

Figure 2 is a top plan view of the adjustable fastener shown in Figurel, and showing a clasp partly broken away to show ball-shaped detents inoperative engagement.

Figure 3 is a top plan view of the clasp, with the cover in openposition, and the detents just sliding over the fasteners.

- Figure 4 is a top plan view of a modified adjustable fastener elementin entirety.

Figure 5 is a cross-sectional view taken on line 5-5 in Figure 4.

Figure 6 is a side elevation of a fragmentary. portion of the modifiedadjustable fastener shown in Figures 4 and 5.

In the illustrated embodiment of the invention shown in Figures 1 and 2,the numeral ID indicates an adjustable fastener comprising an, elongatedstrip of flexible fabric II and a linear,

row of fastener elements l2 forming a track l3.

Each fastener element I2 is preferably made of metal of generallyhexagonal form in plan view, and having a low linear central portion l5contacting the strip II, and two side portions 16 raised to an elevationslightly above the strip H. Each fastener element [2 has two sides l! inright-angular relation with the track I3 and in adjacent relation withthe following fastener element. 3

Two side walls of each of the fastener elements [2 form obtuse-angularlateral extensions l8'and portion of which are two parallel lineartransverse walls 28 for guiding the clasp in with the row of fastenerelements 12.

Two balls 30 serving as detents are mounted inside the clasp 24, betweenthe resilient side walls 26, 26, and two adjoining inclined wallsofadjacent fastener elements I2. The halls cause an interlock between theclasp 24 and the'track A cover 3| is pivotally mounted on" the' claspbody 25 on pins 32. As best shown in Figureg2, the cover 31 terminatesat one end in a,loop'33-. It is to be noted that the; upper wall and thebase 21 of the clasp body 25 have linear openings 35 therethrough andthat during manufacture, the loop -33 is formed so as to normally urgethe side walls toward each other. The cover engages the clasp body infrictional relation.

The cover 3| is of generally channel-shaped cross-section and has twoarms 31 pivotally mounted on the pins 32. When the cover is swung intocovering relation with the-clasp body 25, it retains the side walls 26,26 in close contacting relation with the detents 30, that is, when thedetents are respectively in contacting relation with two adjoiningangular sides of the fastener elements [2.

In operation, the user grips a projection 39 at the free end of thecover 3| and exerts an upward pull on the cover and brings the cover tothe position shown in Figure 3. 'Inthis' posialinement tlon, the usergrips the cover 31 and pulls the clasp 24 in a direction lengthwise ofthe strip H, permitting the detents to ride up or rotate to the verticesof the obtuseangular lateral extensions on the fastener elements E2. Thedetents cause the free end portions of the opposite halves of the claspbody 25 to spread apart, to permit the movement of the detents.

It is to. be noted that upon closing the cover 31, the detentsare forcedinto interlocking engagement between the side walls 28 and two angularsides of the fastener elements.

It is to be noted that the detents 3i) rotate during their movements inthe clasp 24 and this.

rotation reduces friction. The track i3 is generally fiat and of verylittle height; The loop portion 33 of the clasp body this made resilientto permit the free end portion of the-clasp to move to and fro,laterally to open up' when passing the high points on the track.

Figures, 1 to 3 inclusive show an adjustable fastener 10 having a trackI 3' with'two zig-zag sides or lines 28 made by forming opposite sidesof the fastener elements 2 with obtuse-angular projections [.13.

Figures 4 to 6 inclusive show a modified adjustable fastener 49 having atrack 4! wherein the fastener elements 42 have projections 43 which areconvexly rounded or made semi-circular. This form of track 4! providestwo substantially zig-zag sides 44 and a zig-zag operating efiect. Thefastener elements 42 are mounted.

on a flexible strip 45'.

-Each fastener element 42 is preferably made of metal, and has a lowlinear central portion 46 cent sides 48. Stitching 22' passes throughthe:

slots. and through the fabric strip 45 and se-- cures-the. fastenerelements 42 to the strip 45.

1 Aclasp 54 having a body 55 of generally rectangular cross-section andhaving two resilient sidewalls 56, 56,, is slidably mounted on the strip45. The clasp 54 has a base 51.

Two disks serving as detents are mounted inside' the'clasp- 54. betweenthe resilient side walls '56, .56, and two adjoining" convex walls ofadjacent fastener elements 42. The disks 60 cause-an interlock betweenthe'cl'asp 54 and the track 4!.

A- cover 6! is pivotally mounted on the claspbody 55 on pins 62. As bestshown in Figure 4, the cover 6| terminates at one end in a loop 63. Itis to be noted that theupper wall 64 and the base51 of the clasp body 55have linear openings 55 therethrough and that during manufacture, theloop 63 is formed so as to-ncrmally urge the sidewalls toward eachother. The cover engages the clasp body in frictional relation.

5 The cover 6! is of generally channel-shaped cross-section and has twoarms 61 pivotally mounted on the pins 62. When the cover is swung intocovering relation with the clasp body 55', it causes the side walls 56,56 to be in close contacting relation with the disk detents 60..

when the detents are respectively in contacting relation with twoadjoining convex sides of the fastener elements 42.

It is to be noted that the raised horizontal sides of each fastenerelement permit the base portions of the clasp body to ride thereunderand prevent disengagement of the clasp body from the fastener elements.

It is also to be noted that the parallel upright sides of eachfastener-element retain the clasp body against any wobbly motions.

It is also to be noted that each disk-type detent 60 has a pin 60 freelypassing therethrough and centrally thereof. The upper and lower ends ofthe pin 89 are suitably secured in apertures in the upper wall 64 and inthe base 51 of the clasp body 55 In accordance with the patent statutesI have described and illustrated the preferred embodiment of myinvention, but it will be understood that various changes andmodifications can be made therein without departing from the spiritv ofthe invention as defined by the claims.

I claim:

1. In an adjustable fastener, an elongated strip of flexible fabric, aplurality of hexagonal fasappended tener elements secured to said stripby stitching and arranged in a linear row on said strip and forming atraclg said fastener elements havingsides in right-angular relation withsaid strip and.

in adjacent relation with, each other to maintain linear alinement ofsaid elements, two side walls of each of saidfastener elements being inangular relation with each other, both sides of said line of fastenerelements on said strip forming parallel zig-zag lines, each of saidfastener ele ments having two slots therethrough, said slots lyingparallel to said adjacent sides of said fastener elements and servingfor stitching said fastener elements to said flexible strip, a claspslidably mounted on said strip and having resilient side walls,twocircular and rotatable detents respectively positioned between saidresilient side walls and the adjoining inclined walls of adjacentfastener elements, whereby upon movement of said clasp lengthwise ofsaid track, each of said detents on opposite sides of said fastenerelements being in resilient engagement with the side walls of twofastener elements, lock said clasp in selected position on said stripwith a double interlock. 2. In an adjustablefastener, an elongated stripof flexible fabric, a plurality of fastener elements of each of saidfastener elements being in angu lar relation with each other wherebyboth sides of said row of fastener elements form parallel;

substantially zig-zag lines, each of said fastener elements having slotstherethrough for securing. said fastener elements to said flexiblestrip. a. clasp slidably mounted on said strip-and having resilient sidewalls and having a cap pivotally mounted thereon to lock said claspbody, said clasp body having parallel transverse walls guiding saidclasp in alinement with said row of fastener elements, two circular androtatable detents respectively positioned between said resilient sidewalls and the adjoining inclined walls of adjacent fastener elements,said detents being pressed by said cap against the sides of saidfastener elements and in resilient engagement with said side walls andhold said clasp in selected position on said strip with a doubleinterlock.

3. In an adjustable fastener, an elongated strip of flexible fabric, aplurality of fastener elements secured to said strip by stitching andarranged in a linear row on said strip and forming a track, saidfastener elements having sides in rightangular relation with said stripand in adjacent relation with each other to maintain linear alinement assaid elements, two side walls on each side of each of said fastenerelements forming convex extensions whereby both sides of said row offastener elements form parallel substantially zig-zag lines, each ofsaid fastener elements having slots therethrough for securing saidfastener elements to said flexible strip, a clasp slidably mounted onsaid strip and having resilient side Walls and having a cap pivo-tallymounted thereon to close 6 said clasp body, said clasp body havingparallel transverse walls guiding said clasp in alinement with said rowof fastener elements, two circular and rotatable detents respectivelypositioned between said resilient side walls and the adjoining inclinedwalls of adjacent fastener elements, said detents being pressed by saidcap against the sides of said fastener elements and in resilientengagement with said side walls and lock said clasp in selected positionon said strip with a double interlock.

HERMAN VIZNER.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 783,850 Koozian of 1935 1,910,891 Freysinger May 23, 19332.437.765 Statham Mar. 16, 1948

